Water-heater.



Patented Jan. 5, 1915.

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9A U 7 W W [TNESSES A Home WITEM fiTitTFfi PATENT FRANK E. KEYES, OF NEW YORK, N. Y.

WATER-HEATER.

Application filed December 4, 1913.

To all whom it may concern Be it known that I, FRANK E. KEYEs, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Water-Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to water heaters and more particularly to such as employ live steam, the object of the invention being to provide a preheater for water to be fed to boilers, which shall operate to heat the water to such a high temperature as will insure the breaking down of the lime and scale-making ingredients contained in the water, so that such impurities may be readily removed by a separator or purifier prior to the entrance of the water into the boiler.

With this and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a preheater embodying my invention; Fig. 2 is an enlarged longitudinal sectional view of the same; Fig. 3 is a transverse sectional view on the line aaw of Fig. 2, and Fig. 4 is a transverse sectional view on the line yy of Fig. 2.

1 represents a horizontally disposed cylinder having its respective ends threaded externally to receive stout rings or annular heads 2, 3, to which solid heads 4:, 5, are rigidly secured by means of bolts 6.

Within the cylinder 1, and extending approximately from end to end thereof, is a tube 7 having a cubical area preferably approximately one-half that of the cylinder 1. The tube 7 will preferably be so located within the cylinder that its axis will be somewhat below the axis of the cylinder and this tube is made in its upper portion with an opening 8 of considerable width and extending approximately from end to end of the tube.

One end of the tube 7 is threaded externally and enters a threaded socket 9 in the inner face of the head 4., and in this manner, one end of the tube is supported. The other end of the tube is supported by a plug or nipple 10, one end of which is screwed into the head 5 and the other end of this Specification of Letters Patent.

Patented J an. Serial No. 804,699. r

plug receives a cap 11 which enters on'e Iend. of the tube.

A pipe 12 is tapped into the head 4n and communicates with one end of thetubewfl; said pipe being intended to convey water toH the preheater from a suitable sourcewofk supply, preferably from a feed water heater; of any preferred construction,such,.ifor .1 example, as a heater in which exhaust steam is employed.

A, pipe 13 is tapped into the head 5 and communicates with the cylinder,-,this pipe being intended to convey water from the preheater to a suitable separator or purifier, from which latter, the hot water will be conveyed to the boiler or boilers.

A pipe 14 is tapped into the head 1 and communicates with the cylinder 1 above the tube 7,this pipe being intended to convey live steam to the cylinder, preferably at boiler pressure.

In order to extend the radiating surface of the device and thus expose the water to the heating action of the live steam to a maximum extent, I may employ a deflector 15 within the cylinder 1. This deflecter consists in a convex metal plate located under the tube 7, and supported by means of lugs 16 so that its side edges shall be elevated somewhat above the inner face of the cylinder.

Water (preferably heated previously) will enter the tube 7 by the pipe 12 and, after approximately filling the tube, will overflow through the elongated opening 8 and flow over the tube and onto the deflector 15, by which latter it will be directed to the bottom of the cylinder and will leave the latter, by way of the pipe 13. During such flow of the water, it will be highly heated by the action of live steam within the cylinder, such live steam entering by the pipe 14 as before explained, and having no exit. 1 0

Experience has demonstrated that with the use of my improved preheater, I am enabled to raise the temperature of the water to such a height as will effectually break down the lime and scale-forming ingredients of the water, so that these impurities may be readily removed prior to the admission of the water into the boiler. I have found that when boiler pressure is 100 lbs. and the temperature of the water in the boiler is 338 F.the temperature of the water flowing through my improved preheater, will be v cylinder.

' ters-Patent, is

1. A Water preheater comprising a cylinder having a head at each end, a tube located in said cylinder and having an elongated opening in its top and a closed end, a Water inlet entering the other end of said tube"through one head of the cylinder, at

live steam inlet entering the cylinder through'the same head and in a plane above that of the tube, and a Water outlet communicating with the opposite end of the 2. A ater preheater, comprising a horizontal cylinder provided at its respective endswithheads, a slotted tube Within said cylinder and secured at one end to oneof said h'eadsfa plug "projecting inwardly from the'other head, a capsecured to said pl'ug and. disposed Within the other end of the tube, a live steam pipe tapped into one of said heads and communicating with the cylinder above the tube, a Water inlet pipe tapped into the same head and communicating with the tube, and a Water outlet pipe tapped into the other head and communicating With the cylinder below the tube.

A Water preheater, comprising a horizontal cylinder, a tube located Within said cylinder and having an opening in its upper portion, a water deflector -within the cylinder and under said' tube, a live-steam inlet'pipe communicatingwith one end of said cylinder, a Water inlet pipe communicating With one end of the tube, and a Water outlet pipe communicating with the other end of the cylinder. i

In testimony whereof, I have signed this specification-fin the presence of two sub- FBANK- E. KEYES. Witnesses scribing Witnesses.

W; Fonnns'r Kngns, HENRY J ONEILL.

Copies otthis patentmay be obtained for five cents each, by addressing the Commissioner of Patents,

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